Undefined method `match?' for ["Proc.to_proc", "Hash.to_proc"]:Array

[ansonhoyt]

Description

What are your expected behavior and actual behavior of your environment?

Given a Hash (a literal or variable), entering .to_ shows completions:

Expected:

Entering the Tab key should cycle through the available method completions that are shown.

Actual:

Entering Tab exists irb with an error:

/Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb/input-method.rb:315:in `block in show_doc_dialog_proc': undefined method `match?' for ["Proc.to_proc", "Hash.to_proc"]:Array (NoMethodError)
                 'a'}.to_s
        show_easter_egg = name&.match?(/\ARubyVM/) && !ENV['RUBY_YES_I_AM_NOT_A_NORMAL_USER']
                              ^^^^^^^^
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/line_editor.rb:588:in `instance_exec'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/line_editor.rb:588:in `call'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/line_editor.rb:623:in `call'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/line_editor.rb:776:in `update_each_dialog'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/line_editor.rb:652:in `block in render_dialog'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/line_editor.rb:650:in `map'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/line_editor.rb:650:in `render_dialog'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/line_editor.rb:500:in `rerender'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:351:in `block (3 levels) in inner_readline'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:349:in `each'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:349:in `block (2 levels) in inner_readline'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:424:in `block in read_io'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:394:in `loop'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:394:in `read_io'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:347:in `block in inner_readline'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:345:in `loop'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:345:in `inner_readline'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:273:in `block in readmultiline'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/ansi.rb:152:in `block in with_raw_input'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/ansi.rb:152:in `raw'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline/ansi.rb:152:in `with_raw_input'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/reline-0.4.0/lib/reline.rb:269:in `readmultiline'
	from /Users/ahoyt/.rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/forwardable.rb:240:in `readmultiline'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb/input-method.rb:449:in `gets'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:539:in `block in read_input'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:823:in `signal_status'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:537:in `read_input'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:559:in `readmultiline'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:586:in `block in each_top_level_statement'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:585:in `loop'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:585:in `each_top_level_statement'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:507:in `eval_input'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:494:in `block in run'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:493:in `catch'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:493:in `run'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/lib/irb.rb:395:in `start'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/gems/irb-1.9.0/exe/irb:9:in `<top (required)>'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/bin/irb:25:in `load'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/bin/irb:25:in `<main>'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/bin/ruby_executable_hooks:22:in `eval'
	from /Users/ahoyt/.rvm/gems/ruby-3.2.2/bin/ruby_executable_hooks:22:in `<main>'

Terminal Emulator

What's your terminal emulator?

• irb 1.9.0 with Ruby 3.2.2
• iTerm2 3.4.22
• GNU bash, version 3.2.57(1)-release (arm64-apple-darwin23)
• (macOS 14.1 with an Apple M1 Max)

[ansonhoyt]

A slightly simpler reproduction is possible with an empty Hash literal then . then Tab:

will raise:

undefined method `match?' for ["Proc.parameters", "Hash.parameters"]:Array (NoMethodError)

[ima1zumi]

Thank you for your report! This issue has been fixed by ruby/irb#764.

[ansonhoyt]

I missed that PR, glad it is already fixed! 👏